NYU President John Sexton had a bucket of ice water dumped on his head in Washington Square Park.
Hundreds gathered at Grand Central Terminal's main concourse to celebrate the station's 100th birthday.
Vanderbilt Hall echoed with the sounds of squash on Saturday afternoon.
The tournament, which is free and open to the public, will be held on Tuesday and Wednesday.
As part of an all-day circus promotion, Ringling Bros. hosted auditions to find America's next clowns.
The circus is skipping Madison Square Garden this year, but will stop by Grand Central.
Grand Central Terminal will be transformed into a bowling alley for a teen tournament.
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